Fuel economizer



June 9, 1925. 1,541,684

F. W. BUSCH FUEL ECONOMI ZER Filed Deo. 30, 1921 Patented .lune 9, 1925.

UNITED STATES FERDINAND W. BUSCH, OF BERLIN, NORTH DAKOTA.

FUEL ECONOMIZER.

Application led December 30, 1921.

To all whom 'it may concer/rt.'

Be it known that I, FERDINAND IV. BUSCH, a citizen of the United States,re-siding at Berlin, in the county of La Moure and State of NorthDakota, have invented certain new 'and useful Improvements in FuelEconomizers; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

The primary object of this invention is the conservation of fuel in theoperation of internal combustion engine-s.

In accordance with the'present invention, air and water vapor aresupplied to the gaseous mixture preliminary to its admission into theengine.

Other objects and advantages will be apparent and suggest themselves asthe nature of the invention is understood.

llVhile the drawings illustrate an embodiment of the invention, it is tobe understood that in adapting the same to meet different conditions andrequirements, various changes in the form, proportion and minorr detailsof construction may be resorted to without departing from the nature ofthe invention.

Referring` to the accompanying drawings forming a part of theapplication,

Figure l is a diagrammatic view illustrating the application of theinvention,

Figure 2 is a sectional detail of the radiator filling tube and partscooperatng therewith,

Figure 3 is a view of the attachment as seen from the lower end, and

Figure l is a sectional detail of a modication.

Corresponding and like parts are referred to in the followingdescription and designated in the several views of the drawings by likereference characters.

The numeral l designates the filling tube of a radiator such as commonlyemployed in a water-cooled internal combustion engine. In accordancewith the invention, a relatively smallpipe 2 is disposed within SerialNo. 525,855.

the filling tube l and is in communication with the outside atmosphereand with the interior of the filling tube, whereby air from the outsidemay pass freely into the filling tube 1 so as to commingle with thewater vapor or steam contained therein .when the engine is ruiming andthe cooling system is in active operation since the pipe 2 is providedin its side with an opening 3 for the supply of air to the tube 1. Thefilling tube l is closed at its upper end by the usual cap. A tube 4connects with the filling tube l and leads to the intake manifold 5 ofthe engine or like connection, whereby to supply air and water vapor tothe gaseous mixture passing therethrough to the engine. A valve 6 isdisposed in the length of the tube i and is controlled from a convenientpoint by means of a rod 7.

In accordance with this invention, when starting the engine, the valve 6is closed and after the engine has become warm and attained a givenSpeed, the valve 6 is opened whereby to admit air'and water vapor beingdrawn through the tube fl from the upper portion of the radiator so asto mix with the gas in the manifold 5 preliminary to its admission intothe engine.

By supplying air and water vapor to the gaseous mixture, a materialsaving of fuel results.

Figure' 4e of the accompanying drawings illustrates the inventionapplied directly to the filling tube l of the radiator. I-Iowever, inthe preferred form of the invention, a ring 8 is provided and receivesthe pipe 2, one end of the ring being screw threaded to match the screwthreads of the filling tube l and the opposite end being threaded tomatch the thread of the cap 9 which closes the same. The numeral 10designates the usual overflow pipe leading from the filling tube l.

What is claimed is: f

1. In combination with a filling tube of a radiator in an internalcombustion engine cooling system, and a detachable cap for the tube, aring attachable to the tube and adapted to detachably receive the cap,and a screw threaded thereto, and a pipe carried pipe Carried by thetube in communication by the tube in communication with the at- 10 Wit-hthe atmosphere and the interior of the mosphere and the interior of thetube and tube and the fuel line of the engine. the fuel line of theengine.

2. In combination with a lhng tube of a In testimony whereof I aHiX mysignatur radiator in an internal combustion engineY in presence of tWoWitnesses. cooling system and a threaded cap for the FERDINAND IV.BUSCH. tube,l a ring screwl threaded in the tube in Iitiiesses: lieu ofthe cap and adapted to have the cap G. E. PooLiiy,

LOUIS O. MANUS.

